Base | Representation |
---|---|
bin | 11000101000010011… |
… | …10010000001110100 |
3 | 1021010112102112020200 |
4 | 30110021302001310 |
5 | 204040042313140 |
6 | 10024035000500 |
7 | 645451506534 |
oct | 142411620164 |
9 | 37115375220 |
10 | 13223010420 |
11 | 5676054494 |
12 | 2690439130 |
13 | 1329654729 |
14 | 8d621b4c4 |
15 | 525d04030 |
hex | 314272074 |
13223010420 has 144 divisors (see below), whose sum is σ = 41265614208. Its totient is φ = 3424861440.
The previous prime is 13223010403. The next prime is 13223010509. The reversal of 13223010420 is 2401032231.
13223010420 is a `hidden beast` number, since 1 + 3 + 2 + 230 + 10 + 420 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 13223010393 and 13223010402.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4840455 + ... + 4843185.
Almost surely, 213223010420 is an apocalyptic number.
13223010420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 13223010420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20632807104).
13223010420 is an abundant number, since it is smaller than the sum of its proper divisors (28042603788).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13223010420 is a wasteful number, since it uses less digits than its factorization.
13223010420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3510 (or 3505 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 13223010420 its reverse (2401032231), we get a palindrome (15624042651).
The spelling of 13223010420 in words is "thirteen billion, two hundred twenty-three million, ten thousand, four hundred twenty".
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